A simulation model to predict coating coverage

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Toivakka M
Förläggare: FINNISH PAPER TIMBER
Publiceringsår: 2001
Tidskrift: Paperi ja puu
Tidskriftsakronym: PAP PUU-PAP TIM
Volym: 83
Nummer: 1
Artikelns första sida, sidnummer: 34
Artikelns sista sida, sidnummer: 41
Antal sidor: 8
ISSN: 0031-1243


Abstrakt

The flow of suspension into a macro pore in the base sheet is modeled. Flow velocities close to a pore were found to be high enough to redistribute the coating color locally. Spherical particles are able to "bridge" the pore and prevent other particles from entering the pore. Pores less than three sphere diameters, high particle concentration, and low electrostatic stabilization encouraged the bridging mechanism to occur. The results provide a physical picture that helps explain the improved coating holdout at high solids found in experimental studies.

Senast uppdaterad 2020-25-02 vid 06:27